Initialism of postage, processing and handling.

(informal, Internet slang, text messaging) Abbreviation of people. / Initialism of parts per litre.

(linguistics) Abbreviation of participle.

(television) Initialism of pay-per-view. / Initialism of purchase price variance. / (biology) Porcine parvovirus, a virus causing reproductive failure of swine.

(initialism) (common) Parts per million. (10000 ppm = 1%) / (initialism) page(s) per minute

Initialism of points per game. / (ice hockey) Initialism of power play goal, as used in hockey box scoring. / (UK, education) Initialism of pupil premium grant.

(law) Initialism of personal protection order. / Initialism of personal protection officer. / (US, health) Initialism of preferred provider organization. / (chemistry) Initialism of polypropylene oxide.

Initialism of polypeptide laboratory. / Initialism of private pilot license. / Initialism of probabilistic programming language.

(economics) Initialism of producer price index. / (graphics) Initialism of pixels per inch. / (biochemistry) Initialism of proton-pump inhibitor.

Initialism of personal protective equipment. / Initialism of property, plant and equipment. / (UK) Initialism of Philosophy, Politics and Economics, a university degree course.